Actually, it's easy to back up your Samsung galaxy s7 edge to pc by using android assistant tool. First connect Samsung galaxy s7 edge to computer via usb cable, start the android assistant tool. A short time scanning later, you can easily back up it to computer. Effective Ways to Backup Samsung S9
Testimonial: "Where is the android assistant tool? I can't find it on my phone."
SOURCE: galaxy s7 edge
Check with your sim card first whether it's working or not. If it is working, Try a factory reset.
If that doesn't work either,dial the following code and see whether you gets your 15 digit IMEI ( Don't post it here. Just see whether it is coming)
CODE : *#06#
If you see only a bunch of "0"s or just a "0" or an empty space, you'll need to restore your IMEI
If it is not the case, it should be a hardware fault.
SOURCE: How do you unfreeze your galaxy s7 edge when it's stuck on the start up screen
Soft Reset Frozen Unresponsive Screen Samsung Galaxy S7 S7 edge
Testimonial: "Thank you for the information, it work."
only your service provider can give you that
they should have a 24 hr service to call on another phone
if not change service provider to on that does a 24 hr help service
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